PoS - Proceedings of Science
Volume 375 - 14th International Symposium on Radiative Corrections (RADCOR2019) - Integral Results
Two-loop non-planar master integrals for top-pair production in the quark-annihilation channel
M. Becchetti,* R. Bonciani, V. Casconi, A. Ferroglia, S. Lavacca, A. von Manteuffel
*corresponding author
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Pre-published on: December 19, 2019
Published on: February 18, 2020
Abstract
We present the analytic computation of the master integrals associated to certain two-loop non-planar topologies, which are needed to complete the evaluation of the last two color coefficients for the top-pair production in the quark-annihilation channel, which are not yet known analytically. The master integrals have been computed exploiting the differential equations method in canonical form. The solution is given as a series expansion in the dimensional regularization parameter through to weight four, the expansion coefficients are given in terms of multiple polylogarithms.
DOI: https://doi.org/10.22323/1.375.0068
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